New Acoustics Based on Metamaterials

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Focusing on the innovative potential of acoustical metamaterials, the book explores how they can control sound propagation through mechanisms like scattering, diffraction, and refraction. It introduces the concept of "new acoustics," emphasizing the role of symmetry in acoustic fields as a theoretical foundation. The narrative traces the evolution of these materials from locally resonant sonic structures to the introduction of negative acoustic parameters, illustrating their compliance with the acoustic equation of motion and highlighting the symmetry properties inherent in acoustic phenomena.